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accomodate changes to osgDB::DatabasePager interface

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The change was introduced in OSG SVN revision 12080. Note: that
revision has a bug that causes fgfs to crash. The bug is fixed in
revision 12170.
This commit is contained in:
Tim Moore 2011-02-15 12:30:56 +01:00
parent 526cd9fa6e
commit c5366cceb6
2 changed files with 38 additions and 20 deletions
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39
src/Scenery/SceneryPager.cxx
View file

@ -44,15 +44,12 @@ SceneryPager::~SceneryPager()
{
}
#if SG_PAGEDLOD_HAS_OPTIONS
#else
void SceneryPager::requestNodeFile(const std::string& fileName, Group* group,
float priority, const FrameStamp* framestamp,
ref_ptr<Referenced>& databaseRequest,
#if SG_OSG_MIN_VERSION_REQUIRED(2,9,5)
const osg::Referenced* options
#else
osgDB::ReaderWriter::Options* options
#endif
)
osgDB::ReaderWriter::Options* options)
{
simgear::SGPagedLOD *sgplod = dynamic_cast<simgear::SGPagedLOD*>(group);
if(sgplod)
@ -64,6 +61,7 @@ void SceneryPager::requestNodeFile(const std::string& fileName, Group* group,
databaseRequest,
options);
}
#endif
void SceneryPager::queueRequest(const std::string& fileName, Group* group,
float priority, FrameStamp* frameStamp,
@ -81,6 +79,35 @@ void SceneryPager::queueDeleteRequest(osg::ref_ptr<osg::Object>& objptr)
_deleteRequests.push_back(objptr);
objptr = 0;
}
// Work around interface change in
// osgDB::DatabasePager::requestNodeFile
namespace
{
struct NodePathProxy
{
NodePathProxy(NodePath& nodePath)
: _nodePath(nodePath)
{
}
operator Group* () { return static_cast<Group*>(_nodePath.back()); }
operator NodePath& () { return _nodePath; }
NodePath& _nodePath;
};
}
void SceneryPager::PagerRequest::doRequest(SceneryPager* pager)
{
if (_group->getNumChildren() == 0) {
NodePath path;
path.push_back(_group.get());
pager->requestNodeFile(_fileName, NodePathProxy(path), _priority,
_frameStamp.get(),
*_databaseRequest,
_options.get());
}
}
void SceneryPager::signalEndFrame()
{
using namespace std;

19
src/Scenery/SceneryPager.hxx
View file

@ -28,6 +28,7 @@
#include <osgDB/DatabasePager>
#include <simgear/structure/OSGVersion.hxx>
#include <simgear/scene/model/SGPagedLOD.hxx>
namespace flightgear
{
@ -39,16 +40,14 @@ public:
// Unhide DatabasePager::requestNodeFile
using osgDB::DatabasePager::requestNodeFile;
// reimplement to add readerWriterOptions from SGPagedLOD
#if SG_PAGEDLOD_HAS_OPTIONS
#else
virtual void requestNodeFile(const std::string& fileName, osg::Group* group,
float priority,
const osg::FrameStamp* framestamp,
osg::ref_ptr<osg::Referenced>& databaseRequest,
#if SG_OSG_MIN_VERSION_REQUIRED(2,9,5)
const osg::Referenced* options
#else
osgDB::ReaderWriter::Options* options
osgDB::ReaderWriter::Options* options);
#endif
);
void queueRequest(const std::string& fileName, osg::Group* node,
float priority, osg::FrameStamp* frameStamp,
osg::ref_ptr<osg::Referenced>& databaseRequest,
@ -77,15 +76,7 @@ protected:
_databaseRequest(&databaseRequest)
{}
void doRequest(SceneryPager* pager)
{
if (_group->getNumChildren() == 0)
pager->requestNodeFile(_fileName, _group.get(), _priority,
_frameStamp.get(),
*_databaseRequest,
_options.get());
}
void doRequest(SceneryPager* pager);
std::string _fileName;
osg::ref_ptr<osg::Group> _group;
float _priority;